You can download it now from LG Server. Click below download link to grab the firmware.
To flash this firmware onto your LG G4 H815, please use LG’s latest firmware flashing tool – LG UP. Download and install both files from below link.
If you experience any issues with the LG UP software and the H81520c kdz, Please let us know in the comments area below.
*Notes, We are not affiliate with LG Official.